Abstract
AbstractHealth monitoring of structures has a great contribution to the growing interest of researchers in damage detection. The Structural Engineering Community is nowadays employing Electro-Mechanical Impedance (EMI) technique on a wide range for monitoring the health of structures. EMI technique involves the use of Piezoelectric (PZT) patches bonded to the host structure and also instruments such as Impedance analyzer/LCR meter, Wired/Wireless connections, etc. The change in conductance/impedance/susceptance signatures in comparison with the healthy signatures defines the presence of damage. The experimental arrangement in this regard resembles the impedimental system approach. So, substitutable modeling and analysis with the help of simulation are preferable. In this research, a beam-column joint has been modeled in ANSYS 19.2 software. After analysis, the joint has been monitored for baseline (healthy) results on the basis of the simulated EMI technique for health inspection. After getting the baseline conductance and susceptance signatures, the beam-column joint has been formed with a crack modeled on the joint. The fracture analyzed model was then monitored in the same way as a healthy model with the help of the PZT patch. The conductance signature so obtained was then compared with the baseline (healthy) signature, the change in which identified the presence of a crack on the joint. Root mean squared deviation (RMSD) values have been calculated for computing the change in conductance values for respective frequency ranges.KeywordsANSYSDamaged/cracked beam-column jointEMI techniqueSHM
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